package com.amap.map2d.demo.poisearch;

import java.util.ArrayList;
import java.util.List;

import android.app.ProgressDialog;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.TextView;

import com.amap.api.maps2d.AMap;
import com.amap.api.maps2d.AMap.InfoWindowAdapter;
import com.amap.api.maps2d.AMap.OnMarkerClickListener;
import com.amap.api.maps2d.AMapUtils;
import com.amap.api.maps2d.SupportMapFragment;
import com.amap.api.maps2d.model.Marker;
import com.amap.api.maps2d.model.NaviPara;
import com.amap.api.maps2d.overlay.PoiOverlay;
import com.amap.api.services.core.AMapException;
import com.amap.api.services.core.PoiItem;
import com.amap.api.services.core.SuggestionCity;
import com.amap.api.services.help.Inputtips;
import com.amap.api.services.help.Inputtips.InputtipsListener;
import com.amap.api.services.help.InputtipsQuery;
import com.amap.api.services.help.Tip;
import com.amap.api.services.poisearch.PoiResult;
import com.amap.api.services.poisearch.PoiSearch;
import com.amap.api.services.poisearch.PoiSearch.OnPoiSearchListener;
import com.amap.map2d.demo.R;
import com.amap.map2d.demo.util.AMapUtil;
import com.amap.map2d.demo.util.ToastUtil;

/**
 * AMapV1地图中简单介绍poisearch搜索
 */
public class PoiKeywordSearchActivity extends FragmentActivity implements
		OnMarkerClickListener, InfoWindowAdapter, TextWatcher,
		OnPoiSearchListener, OnClickListener, InputtipsListener {
	private AMap aMap;
	private AutoCompleteTextView searchText;// 输入搜索关键字
	private String keyWord = "";// 要输入的poi搜索关键字
	private ProgressDialog progDialog = null;// 搜索时进度条
	private EditText editCity;// 要输入的城市名字或者城市区号
	private PoiResult poiResult; // poi返回的结果
	private int currentPage = 0;// 当前页面，从0开始计数
	private PoiSearch.Query query;// Poi查询条件类
	private PoiSearch poiSearch;// POI搜索

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.poikeywordsearch_activity);
		init();
	}

	/**
	 * 初始化AMap对象
	 */
	private void init() {
		if (aMap == null) {
			aMap = ((SupportMapFragment) getSupportFragmentManager()
					.findFragmentById(R.id.map)).getMap();
			setUpMap();
		}
	}

	/**
	 * 设置页面监听
	 */
	private void setUpMap() {
		Button searButton = (Button) findViewById(R.id.searchButton);
		searButton.setOnClickListener(this);
		Button nextButton = (Button) findViewById(R.id.nextButton);
		nextButton.setOnClickListener(this);
		searchText = (AutoCompleteTextView) findViewById(R.id.keyWord);
		searchText.addTextChangedListener(this);// 添加文本输入框监听事件
		editCity = (EditText) findViewById(R.id.city);
		aMap.setOnMarkerClickListener(this);// 添加点击marker监听事件
		aMap.setInfoWindowAdapter(this);// 添加显示infowindow监听事件
	}

	/**
	 * 点击搜索按钮
	 */
	public void searchButton() {
		keyWord = AMapUtil.checkEditText(searchText);
		if ("".equals(keyWord)) {
			ToastUtil.show(PoiKeywordSearchActivity.this, "请输入搜索关键字");
			return;
		} else {
			doSearchQuery();
		}
	}

	/**
	 * 点击下一页按钮
	 */
	public void nextButton() {
		if (query != null && poiSearch != null && poiResult != null) {
			if (poiResult.getPageCount() - 1 > currentPage) {
				currentPage++;
				query.setPageNum(currentPage);// 设置查后一页
				poiSearch.searchPOIAsyn();
			} else {
				ToastUtil.show(PoiKeywordSearchActivity.this,
						R.string.no_result);
			}
		}
	}

	/**
	 * 显示进度框
	 */
	private void showProgressDialog() {
		if (progDialog == null)
			progDialog = new ProgressDialog(this);
		progDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
		progDialog.setIndeterminate(false);
		progDialog.setCancelable(false);
		progDialog.setMessage("正在搜索:\n" + keyWord);
		progDialog.show();
	}

	/**
	 * 隐藏进度框
	 */
	private void dissmissProgressDialog() {
		if (progDialog != null) {
			progDialog.dismiss();
		}
	}

	/**
	 * 开始进行poi搜索
	 */
	protected void doSearchQuery() {
		showProgressDialog();// 显示进度框
		currentPage = 0;
		query = new PoiSearch.Query(keyWord, "", editCity.getText().toString());// 第一个参数表示搜索字符串，第二个参数表示poi搜索类型，第三个参数表示poi搜索区域（空字符串代表全国）
		query.setPageSize(10);// 设置每页最多返回多少条poiitem
		query.setPageNum(currentPage);// 设置查第一页
		query.setCityLimit(true);

		poiSearch = new PoiSearch(this, query);
		poiSearch.setOnPoiSearchListener(this);
		poiSearch.searchPOIAsyn();
	}

	@Override
	public boolean onMarkerClick(Marker marker) {
		marker.showInfoWindow();
		return false;
	}

	@Override
	public View getInfoContents(Marker marker) {
		return null;
	}

	@Override
	public View getInfoWindow(final Marker marker) {
		View view = getLayoutInflater().inflate(R.layout.poikeywordsearch_uri, null);
		TextView title = (TextView) view.findViewById(R.id.title);
		title.setText(marker.getTitle());

		TextView snippet = (TextView) view.findViewById(R.id.snippet);
		snippet.setText(marker.getSnippet());
		ImageButton button = (ImageButton) view
				.findViewById(R.id.start_amap_app);
		// 调起高德地图app
		button.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View v) {
				startAMapNavi(marker);
			}
		});
		return view;
	}

	/**
	 * 调起高德地图导航功能，如果没安装高德地图，会进入异常，可以在异常中处理，调起高德地图app的下载页面
	 */
	public void startAMapNavi(Marker marker) {
		// 构造导航参数
		NaviPara naviPara = new NaviPara();
		// 设置终点位置
		naviPara.setTargetPoint(marker.getPosition());
		// 设置导航策略，这里是避免拥堵
		naviPara.setNaviStyle(AMapUtils.DRIVING_AVOID_CONGESTION);

		// 调起高德地图导航
		try {
			AMapUtils.openAMapNavi(naviPara, getApplicationContext());
		} catch (com.amap.api.maps2d.AMapException e) {

			// 如果没安装会进入异常，调起下载页面
			AMapUtils.getLatestAMapApp(getApplicationContext());

		}

	}

	/**
	 * 判断高德地图app是否已经安装
	 */
	public boolean getAppIn() {
		PackageInfo packageInfo = null;
		try {
			packageInfo = this.getPackageManager().getPackageInfo(
					"com.autonavi.minimap", 0);
		} catch (NameNotFoundException e) {
			packageInfo = null;
			e.printStackTrace();
		}
		// 本手机没有安装高德地图app
		if (packageInfo != null) {
			return true;
		}
		// 本手机成功安装有高德地图app
		else {
			return false;
		}
	}

	/**
	 * 获取当前app的应用名字
	 */
	public String getApplicationName() {
		PackageManager packageManager = null;
		ApplicationInfo applicationInfo = null;
		try {
			packageManager = getApplicationContext().getPackageManager();
			applicationInfo = packageManager.getApplicationInfo(
					getPackageName(), 0);
		} catch (PackageManager.NameNotFoundException e) {
			applicationInfo = null;
		}
		String applicationName = (String) packageManager
				.getApplicationLabel(applicationInfo);
		return applicationName;
	}

	/**
	 * poi没有搜索到数据，返回一些推荐城市的信息
	 */
	private void showSuggestCity(List<SuggestionCity> cities) {
		String infomation = "推荐城市\n";
		for (int i = 0; i < cities.size(); i++) {
			infomation += "城市名称:" + cities.get(i).getCityName() + "城市区号:"
					+ cities.get(i).getCityCode() + "城市编码:"
					+ cities.get(i).getAdCode() + "\n";
		}
		ToastUtil.show(PoiKeywordSearchActivity.this, infomation);

	}

	@Override
	public void afterTextChanged(Editable s) {

	}

	@Override
	public void beforeTextChanged(CharSequence s, int start, int count,
			int after) {

	}

	@Override
	public void onTextChanged(CharSequence s, int start, int before, int count) {
		String newText = s.toString().trim();
    	if (!AMapUtil.IsEmptyOrNullString(newText)) {
		InputtipsQuery inputquery = new InputtipsQuery(newText, editCity.getText().toString());
		Inputtips inputTips = new Inputtips(PoiKeywordSearchActivity.this, inputquery);
		inputTips.setInputtipsListener(this);
		inputTips.requestInputtipsAsyn();
    	}
	}


	/**
	 * POI信息查询回调方法
	 */
	@Override
	public void onPoiSearched(PoiResult result, int rCode) {
		dissmissProgressDialog();// 隐藏对话框
		if (rCode == AMapException.CODE_AMAP_SUCCESS) {
			if (result != null && result.getQuery() != null) {// 搜索poi的结果
				if (result.getQuery().equals(query)) {// 是否是同一条
					poiResult = result;
					// 取得搜索到的poiitems有多少页
					List<PoiItem> poiItems = poiResult.getPois();// 取得第一页的poiitem数据，页数从数字0开始
					List<SuggestionCity> suggestionCities = poiResult
							.getSearchSuggestionCitys();// 当搜索不到poiitem数据时，会返回含有搜索关键字的城市信息

					if (poiItems != null && poiItems.size() > 0) {
						aMap.clear();// 清理之前的图标
						PoiOverlay poiOverlay = new PoiOverlay(aMap, poiItems);
						poiOverlay.removeFromMap();
						poiOverlay.addToMap();
						poiOverlay.zoomToSpan();
					} else if (suggestionCities != null
							&& suggestionCities.size() > 0) {
						showSuggestCity(suggestionCities);
					} else {
						ToastUtil.show(PoiKeywordSearchActivity.this,
								R.string.no_result);
					}
				}
			} else {
				ToastUtil.show(PoiKeywordSearchActivity.this,
						R.string.no_result);
			}
		} else {
			ToastUtil.showerror(PoiKeywordSearchActivity.this, rCode);
		}

	}
	
	@Override
	public void onPoiItemSearched(PoiItem item, int rCode) {
		// TODO Auto-generated method stub
		
	}

	/**
	 * Button点击事件回调方法
	 */
	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		/**
		 * 点击搜索按钮
		 */
		case R.id.searchButton:
			searchButton();
			break;
		/**
		 * 点击下一页按钮
		 */
		case R.id.nextButton:
			nextButton();
			break;
		default:
			break;
		}
	}



	@Override
	public void onGetInputtips(List<Tip> tipList, int rCode) {
		if (rCode == AMapException.CODE_AMAP_SUCCESS) {// 正确返回
			List<String> listString = new ArrayList<String>();
			for (int i = 0; i < tipList.size(); i++) {
				listString.add(tipList.get(i).getName());
			}
			ArrayAdapter<String> aAdapter = new ArrayAdapter<String>(
					getApplicationContext(),
					R.layout.route_inputs, listString);
			searchText.setAdapter(aAdapter);
			aAdapter.notifyDataSetChanged();
		} else {
			ToastUtil.showerror(PoiKeywordSearchActivity.this, rCode);
		}
		
		
	}
}
